---
title: Migration guides
url: https://platform.claude.com/docs/en/about-claude/models/migration-guide
description: Guides for migrating to the latest Claude models from previous Claude versions
---

* [Migrating to Claude Mythos 5 and Claude Fable 5](https://platform.claude.com/docs/en/models/fable-5/migration-guide)
* [Migrating to Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/migration-guide)
* [Migrating to Claude Sonnet 5](https://platform.claude.com/docs/en/models/sonnet-5/migration-guide)
* [Migrating to Claude Haiku 4.5](https://platform.claude.com/docs/en/models/haiku-4-5/migration-guide)

## Get help

* Check the [API documentation](https://platform.claude.com/docs/en/api/overview) for detailed specifications
* Review [model capabilities](https://platform.claude.com/docs/en/models/overview) for performance comparisons
* Review [API release notes](https://platform.claude.com/docs/en/release-notes/api) for API updates
* Contact support if you encounter any issues during migration